Lid, cover, stopper, and like closure



1934- E. M. FRONTERAS ET AL 7 78 LID, COVER, STOPPEH, AND LIKE CLOSURE Fi1ed.A'pril 21, 1934 max me Patented Aug. 28, 1934 UNITED} STATES LID, oovnn, ,s'rorrna, AND LIKE CLOSURE Edgar Mario Fronteras, London, England, and

Guiseppe Bonora, Bologna, Italy Application April 21,

1934, Serial No. 721,812

In Great Britain April 20, 1933.

5 Claims.

The invention relates to lids, covers, stoppers and like closures of the kind comprising-essentially a hinged cover member or cap, and a pivoted arm coacting with said cover member in such manner that on movement of said arm in one direction it swings open the cover by engaging an abutment on the latter, whilst on reverse movement of the arm it pushes down the cover to closed position on its seating.

The object of the'invention is to provide an improved construction of closure of this character which will ensure the cover being held in closed position with greater security than heretofore and which, by virtue of simplicity of construction, will reduce the cost of manufacture to the minimum.

In the accompanying drawing, Fig. 1 is a side View, partly in section, of one form of the improved closure; Fig. 2 is a plan View and Fig. 3 is a side view thereof in open position.

Figs. 4, 5 and 6 are similar views of a modified construction, and

Figs. 7 and 8 are a side elevation and plan view respectively of a further modification.

Referring to the construction shown in Figs. 1 to 3, 1 designates the cover member provided with 2. lug 2 hinged at 3 to a lug on a collar 4 which is adapted to be connected in any suitable manner to the container or other member to which the the closure is fitted. 5 designates a rigid arm by which the cover 1 is opened and closed, said arm terminating at one end in an externally screwed downward extension 6 at right angles, or substantially so, to the main portion '7, and engaging with its screw thread 6 in 2. correspondingly tapped lug 8 on the collar 4, the top edge of which latter forms a seating for the cover member 1.

With the cover member 1 in closed position the arm 5 bears on top thereof as shown in Fig. 1, to open the cover member 1, the arm is swung out laterally to the position shown in broken lines in Fig. 2, the return movement closing the cover member. The latter is provided at the top with a domed center 12 with which the arm 5 engages during its closing movement so as to cam the cover down, and said domed portion is provided 1 with a locating recess 13 for reception of the arm. The arm 5 has a curved part 10 adapted when said arm is swung from the. center outwards to engage with an abutment 11 formed by an upward extension of the lug 2.

To open the cover member the arm 5 is swung round laterally away from the cover, from the position shown in full lines in Fig. 2 to that in-- dicated in broken lines in Fig. 2, whereby the curved partli) engages the abutment 11, thereby swinging up the cover member about its pivot 3 to the open position shown in Fig. 3. Conversely, to close the cover, the arm is swung back so that itstrikes the top of the cover, thereby swin ing the latter down to closed position, (Fig. 1), whereupon the arm engages the, domed part 12 and. finally engages in recess 13. During such closing movement of the arm it screws itself down onto the cover member 1 due to the screwed connection 5, 8, so that said member is forced down firmly and positively onto its seating on the collar.

In the construction shown in Figs. 4, 5 and 6, 4 designates the collar on which is a lug 8 provided with a screwed stud 14 with which engages acorrespondingly tapped bore in a boss 16 on the inner end of arm B On top of the cover member 1 pivoted to the collar at 3*, is a central rib 1'7 provided with a slot 18 through which the arm 5 projects, said arm coacting with a cam projection 19 on top of the cover. The end portions 20, 21 of the ribs 17 form abutments for engagement by the arm 5*.

The action of this device is similar to that shown in Figs. 1 to 3. The cover member 1 is held in closed position by the arm 5 bearing on top of it. To open the cover member the arm 5 is swung out to the position shown in broken lines in Fig. 5, so that it engages the abutment 21 and thereby swings open the cover member 1 (Fig. 6) On the return movement of arm 5 it engages the cam 19 and thus forces down the cover member onto its seating on collar 3*. (Fig. 4) the part 20 acting as a stop for the arm in closed position.

In both constructions the pitch of the thread at the pivotal connection of the; arm 5, 5 is such that the arm is lowered during its inward closing movement to such an extent that it will press firmly on top of the cover member at the end of such movement.

Referring to Figs. 7 and 8, where the container or other part to which the closure is to be fitted is provided with a neck 22, as shown, an arcuate bracket 23 may be provided in lieu of the collar, said bracket being adapted to be connected to the neck 22, the top of which will form. the seating for the cover member.

What we claim as our invention and desire to secure by Letters Patent of the United States is:--

1. A closure comp-rising in combination a cover member, a support to which said cover member is hinged for opening and closing movement, a rigid arm connected to said support by a screw thread connection forming a pivot or swinging movement of said .arm towards the center of said cover member to bear thereon and away therefrom transversely of the movement of the cover member, and an abutment on said cover member disposed in the path of the arm when swung away end of said arm, said screwed connection form-;

ing a pivot forswinging movement of said arm towards the center of said cover member to bear.

thereon and away therefrom, transversely of the movement of the cover member, and an abutment on said cover member disposed in the path of said ar1n when' swung away from the center of said cover, said arm on such swinging movement engaging said abutment and thereby swinging open the cover, and on its movement towards the center of the cover screwing itself downward engaging" with the cover to'swing same down to closed position; r

3. A closure comprising combination a cover member, a collar forming a' seating for said cover member and to which the latter is hinged for opening and closing movement, a rigid arm, a screw on said collar, 9. tapped bore in one end of said arm engaging with said screw, said screwed connection forming a pivot for swinging movement of said arm towards the center-of said cover member to bear thereon and away therefrom, transverselyof the-movement of the cover member, and an abutment on said covermember disposed in the path of said arm when swung away from the center of said cover, said arm on such swinging movement engaging said abutment and thereby swinging open the cover, and on its movement towards the center of the cover screwing itself down and engaging with the cover to swing same down to closed position.

4. A closure comprising in combination a cover member, an arcuate bracket to which said cover member is hinged for opening and closing movement, a rigid arm connected to said bracket by -a-screw thread connection forming a pivot for swinging movement of said arm towards the cen- 'terof said cover'member to bear thereon and away therefrom transversely of the movement of the cover member, and an abutment on said thread connection forming a pivot for swinging movement of said arm towards the center of said cover member to bear thereon and away therefrom transversely of the movementof the cover member, a curved bend in said arm, an abutment on said cover member disposed in the path of said curved bend in the armwhen the latter is swung away from the center of the cover, said" arm on such swinging movement engaging with its curved part said abutment and thereby swinging open the cover, and on itsmovement towards the center of the cover screwing itself down and engaging with the cover to swingsame down to closed -position M 7 M EDGAR MARIO ER'QNTERAS. GUISEPPE BONORIL, 

